Latest bullet3 submodule

[max-sym]

Resuming #366
Bullet 3 has more functionality so would be great to update it.

Thanks @Zentropivity for laying the beginning for it, saved so much time.

I don't have much experience in C++, cmake etc. including this repo so would need help from someone already familiar with those things to finally push this forward 🚀

• Make first build work
• Check IDL for anything missing
• What should we do about file size?
• Make sure all examples work
• Tests pass
• Final build

Let's go!

[lo-th]

Hi i test this version all work on PHY
i don't try soft body.

[sdarpeng]

So, Is Kripken still alive?

[max-sym]

@sdarpeng I don't have time to finish the PR, but feel free to contribute yourself :)

[sdarpeng]

I am newbie. I've got headache with ammo.js....it is too hard for me.

[sdarpeng]

Hi i test this version all work on PHY i don't try soft body.

I am studying lo-th's phy.
And I found you made a special drag controller with orbit controller.
So I am trying to write this 'superDragControls' class by myself.

here it is.